Description

2,3',5',6-Tetrachlorobiphenyl is a specific congener of polychlorinated biphenyls (PCBs), a well-studied class of synthetic organic chemicals. This compound is of significant interest for research and analytical purposes, particularly in environmental monitoring and toxicology studies. It is primarily utilized by analytical laboratories, research institutions, and chemical manufacturers involved in the development of reference standards, calibration solutions, and for conducting fate and transport studies of persistent organic pollutants.

Application

• Analytical Reference Standard: Serves as a high-purity certified reference material (CRM) for the calibration of analytical instruments like GC-MS and HPLC in environmental testing laboratories.
• Environmental Research: Used in scientific studies to understand the environmental behavior, bioaccumulation, and degradation pathways of PCB congeners in ecosystems.
• Toxicological Studies: Employed as a test substance in laboratory research to investigate the specific health effects and metabolic pathways of tetrachlorobiphenyl isomers.
• Method Development & Validation: Critical for developing, optimizing, and validating new analytical methods for the detection and quantification of PCBs in complex matrices.
• Quality Control/Quality Assurance (QC/QA): Used as an internal standard or spike in quality control protocols to ensure accuracy and precision in PCB analysis for regulatory compliance.
• Chemical Synthesis Intermediate: May be used as a specialized intermediate or starting material in advanced organic synthesis for research purposes.

Basic Information

Product Name	2,3',5',6-Tetrachlorobiphenyl
CAS No.	74338-23-1
Molecular Formula	C₁₂H₆Cl₄
Molecular Weight	291.99 g/mol
Synonyms	PCB 65; 2,3',5',6-Tetrachloro-1,1'-biphenyl; 1,1'-Biphenyl, 2,3',5',6-tetrachloro-; 2,3,5,6-Tetrachlorobiphenyl (mixed isomer notation); 2,3',5',6-TCB; Tetrachlorobiphenyl (IUPAC locant specific); Biphenyl, 2,3',5',6-tetrachloro-; NSC 178228
EINECS	Contact for details

Quality Control

Our 2,3',5',6-Tetrachlorobiphenyl is produced and handled under strict quality management protocols. Each batch undergoes rigorous analytical testing, including chromatographic purity assays (HPLC, GC) and identity confirmation (IR, MS), to ensure it meets the high standards required for research and analytical applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and trace solvent levels is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (typically 15-25°C). Keep the container sealed when not in use to maintain purity and prevent contamination.

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms to structure
Purity (HPLC/GC)	≥ 98.0% (Area %)
Melting Point	Contact for details
Residual Solvents (GC)	Meets ICH guidelines

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.